#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>

int main() {
    int n;
    while (scanf("%d", &n) != EOF) {
        for (int i = 1; i <= n; i++) {
            for (int m = 1; m <= i; m++) {
                printf("%d ", m);
            }
            printf("\n");
        }
    }
    return 0;
}